Quasi-One-Dimentional Approach to Modeling of Propagation of Gas Detonation in a Medium with Variable Chemical Composition

The quasi-one-dimensional model is presented to describe the propagation of detonation wave in a tube filled with an explosive gas mixture, the chemical composition of which varies along the tube axis. This takes into account energy losses chemical equilibrium flow of detonation products for friction and heat removal in the tube wall. Within the limits of this model, it numerically investigated the gas detonation transition through a region with the concentration gradient of chemical agents. It analyzed the possibility of excitation overdriven detonation waves as a result of this transition.

Keywords:
detonation waves, concentration gradient of chemical agents, degree of overdriven detonation products, chemical equilibrium, energy losses. 
УДК 534.222.2

Quasi-One-Dimentional Approach to Modeling of Propagation of Gas Detonation in a Medium with Variable Chemical Composition